[INFO] cloning repository https://github.com/lukehoban/endo-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lukehoban/endo-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flukehoban%2Fendo-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flukehoban%2Fendo-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2e1fa8cf66fca99776edcd550e1c38a518a43622
[INFO] checking lukehoban/endo-rust against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flukehoban%2Fendo-rust" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lukehoban/endo-rust on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lukehoban/endo-rust
[INFO] finished tweaking git repo https://github.com/lukehoban/endo-rust
[INFO] tweaked toml for git repo https://github.com/lukehoban/endo-rust written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/lukehoban/endo-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a4933a502f2f91b0f116d288f68f803dc7806c75ac9f4fbc4fb558c533b04a99
[INFO] running `Command { std: "docker" "start" "-a" "a4933a502f2f91b0f116d288f68f803dc7806c75ac9f4fbc4fb558c533b04a99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4933a502f2f91b0f116d288f68f803dc7806c75ac9f4fbc4fb558c533b04a99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4933a502f2f91b0f116d288f68f803dc7806c75ac9f4fbc4fb558c533b04a99", kill_on_drop: false }`
[INFO] [stdout] a4933a502f2f91b0f116d288f68f803dc7806c75ac9f4fbc4fb558c533b04a99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6dd5d8ab68f51c624f81aed5f4b51e81774649c54ba8b4458366d3f547b685a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a6dd5d8ab68f51c624f81aed5f4b51e81774649c54ba8b4458366d3f547b685a", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]     Checking adler32 v1.0.2
[INFO] [stderr]     Checking byteorder v1.2.2
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking color_quant v1.0.0
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking xi-rope v0.0.0 (/opt/rustwide/workdir/rope)
[INFO] [stderr]     Checking getopts v0.2.17
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking inflate v0.3.4
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> rope/src/tree.rs:510:52
[INFO] [stdout]     |
[INFO] [stdout] 510 |     pub fn prev<M: Metric<N>>(&mut self) -> Option<(usize)> {
[INFO] [stdout]     |                                                    ^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> rope/src/tree.rs:556:52
[INFO] [stdout]     |
[INFO] [stdout] 556 |     pub fn next<M: Metric<N>>(&mut self) -> Option<(usize)> {
[INFO] [stdout]     |                                                    ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> rope/src/interval.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |             try!(write!(f, "["));
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> rope/src/interval.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |             try!(write!(f, "("));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> rope/src/interval.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         try!(write!(f, "{}, {}", self.start(), self.end()));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> rope/src/interval.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             try!(write!(f, "]"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> rope/src/interval.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |             try!(write!(f, ")"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking rayon v1.0.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.14
[INFO] [stderr]     Checking image v0.18.0
[INFO] [stderr]     Checking endo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.67s
[INFO] running `Command { std: "docker" "inspect" "a6dd5d8ab68f51c624f81aed5f4b51e81774649c54ba8b4458366d3f547b685a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6dd5d8ab68f51c624f81aed5f4b51e81774649c54ba8b4458366d3f547b685a", kill_on_drop: false }`
[INFO] [stdout] a6dd5d8ab68f51c624f81aed5f4b51e81774649c54ba8b4458366d3f547b685a